US3777683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing loops of elasticised material
Assignee: Bonds Wear Pty Ltd
•
Filing: 1972-03-28
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Granted: 1973-12-11
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Expires: 1992-03-28
Abstract
Abstract Apparatus to manufacture loops from elasticised material. The apparatus comprising material feed means whereby an end of strip material is transferred to a rotating work head which forms a loop of material and securing and severing means to fasten overlying parts of the material to form a loop and sever the loop from the strip material.
Inventors
- 👤 H Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:14
CPC Classifications
D; D05; D05B; D05B33/00; D05B33/02; A; A41; A41F; A41F9/00; A41F9/02; A41H; A41H43/00; D05B23/00; A41B; A41B2500/00; A41B2500/30; D05B65/00; D05D; D05D2207/00; D05D2207/02; D05D2303/00; D05D2303/02; D05D2303/04; D05D2305/00; D05D2305/08; D05D2305/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
357 words
A machine for manufacturing loops of elasticised material, said machine comprising a frame, bearing means on the frame, a rotatable work-head having a circular periphery, a central shaft on the work-head mounted rotatably in the bearing means, a material severing device on the frame, a stitching machine on the frame, an anvil in the periphery of the work-head in operative relationship to the stiching machine, a gripper on the work-head, first resilient means to hold the gripper against the anvil, first rotatable cam means on the frame to move the gripper relative to the anvil, an arm universally pivotally connected to the frame, an openable beak on the arm, second resilient means to move the arm to a position where the beak occupies a first position, second and third cam means on the frame to move the arm and thus the beak through a path of travel which is substantially rectangular the four terminal points of said path defining four operative positions for said beak, fourth cam means on the frame to open the beak, drive means to rotate said work head and move the beak between its four operative positions, the cycle of operations of said machine being; move the beak from its first position to its second position with the beak open; close the beak to grip one end of a strip of material which is to be formed into a loop; move the beak to its third position to locate the strip adjacent the beak over the anvil and under the gripper which is open; close the gripper to clamp the material on the anvil; open the beak and move it to its fourth position; rotate the work-head and at the same time move the beak from the fourth to the first position; operate the stitching machine to stitch overlying portions of the material to form a loop of material after one rotation of the work-head; move the beak to its second position and grip the material supply behind the stitch forming the loop; actuate the severing device to cut the material supply strip between the stitch and the beak and release the gripper.
Claim 2
Dependent Claim
357 words
A machine for manufacturing loops of elasticised material, said machine comprising a frame, bearing means on the frame, a rotatable work-head having a circular periphery, a central shaft on the work-head mounted rotatably in the bearing means, a material severing device on the frame, a stitching machine on the frame, an anvil in the periphery of the work-head in operative relationship to the stiching machine, a gripper on the work-head, first resilient means to hold the gripper against the anvil, first rotatable cam means on the frame to move the gripper relative to the anvil, an arm universally pivotally connected to the frame, an openable beak on the arm, second resilient means to move the arm to a position where the beak occupies a first position, second and third cam means on the frame to move the arm and thus the beak through a path of travel which is substantially rectangular the four terminal points of said path defining four operative positions for said beak, fourth cam means on the frame to open the beak, drive means to rotate said work head and move the beak between its four operative positions, the cycle of operations of said machine being; move the beak from its first position to its second position with the beak open; close the beak to grip one end of a strip of material which is to be formed into a loop; move the beak to its third position to locate the strip adjacent the beak over the anvil and under the gripper which is open; close the gripper to clamp the material on the anvil; open the beak and move it to its fourth position; rotate the work-head and at the same time move the beak from the fourth to the first position; operate the stitching machine to stitch overlying portions of the material to form a loop of material after one rotation of the work-head; move the beak to its second position and grip the material supply behind the stitch forming the loop; actuate the severing device to cut the material supply strip between the stitch and the beak and release the gripper.
Claim 3
Dependent Claim
43 words
The machine claimed in claim 1 including shafts on which the four cams are fixed, bearings in the frame to rotatably support the shafts, the connection of the arm to the frame being on the axis of the shaft of the fourth cam.
Claim 4
Dependent Claim
25 words
The machine claimed in claim 2 including a rod slidably mounted in the arm and moved axially by the fourth cam to open the beak.
Claim 5
Dependent Claim
16 words
The machine claimed in claim 2 including gears and a Geneva action which interconnect the shafts.
Claim 6
Dependent Claim
134 words
The machine claimed in claim 1 including a loop remover comprising two pairs of fingers, carriages on which the fingers are mounted, a rail on which the carriages are mounted, two pairs of cutouts in the periphery of the work-head, arms on which the rail is pivotally mounted, drive means to raise and lower the arms and move the carriages on the rail and tilt the rail relative to the arms; the relative positioning of the loop removeR and the work-head being such that with the arms raised and the rail tilted the fingers can be swung into the work-head cutouts by removing the rail tilt, separation of the carriages and tilting and lowering of the rail and arms respectively, remove the finished loop and free the work-head for a further loop fabricating cycle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |